COMMONWEALTH OF PENNSYLVANIA DEPARTMENT OF TRANSPORTATION CHIEF BRIDGE ENGINEER RECOMMENDED RECOMMENDED BUREAU OF PROJECT DELIVERY ACTING DIR, BUR. OF PROJECT DELIVERY STANDARD CENTER-MOUNT SIGN STRUCTURES GENERAL NOTES DESIGN CRITERIA AND BD-649M SHEET 1 OF 6 NOV. 26, 2013 NOV. 26, 2013 DYNAMIC MESSAGE SIGNS REFERENCE DRAWINGS CLASSIFICATION OF EARTHWORK FOR STRUCTURES TYPE 2 STRONG POST GUIDE RAIL TYPE 2 WEAK POST GUIDE RAIL BARRIER PLACEMENT AT OBSTRUCTIONS TYPE 2 WEAK POST MEDIAN BARRIER BC-736M BC-741M RC-11M RC-52M RC-53M RC-54M RC-55M REINFORCEMENT BAR FABRICATION DETAILS RC-58M SINGLE FACE CONCRETE BARRIER PLACEMENT AT MEDIAN PIERS STRUCTURES STRUT LENGTHS UP TO 40' OVERHEAD SIGN STRUCTURES - CANTILEVER AND CENTER-MOUNT ITS DEVICES - GENERAL ITS-1201 ITS-1230 GENERAL NOTES FOR CANTILEVER STRUCTURES GENERAL NOTES: INFORMATIONAL NOTES: CONSTRUCTION GENERAL NOTES: FOR DETAILS NOT SHOWN SEE BC-741M. WARRANTS FOR INSTALLATION. USE OF GUIDE RAIL AND/OR CONCRETE BARRIER SHALL MEET APPLICABLE PENNDOT CHAPTER 12 GUIDE RAIL, MEDIAN BARRIER AND ROADSIDE SAFETY DEVICES. PROVIDE CRASHWORTHY BARRIER IN ACCORDANCE WITH PENNDOT PUB 13M (DM-2). CRASHWORTHY BARRIER, SEE TABLE A, BC-741M SHEET 2. ALL DMS SUPPORTS LOCATED WITHIN THE CLEAR ZONE MUST BE SHIELDED WITH A CONTRACT DRAWINGS. USE THESE STANDARDS AS A BASIS FOR THE PREPARATION OF STRUCTURE LAYOUTS AND READ THESE NOTES BEFORE USING THESE STANDARDS. ALL DIMENSIONS ARE IN U.S. CUSTOMARY UNITS. PROVIDE 3-INCH CONCRETE COVER ON REINFORCEMENT BARS, EXCEPT AS NOTED. USE CLASS A CEMENT CONCRETE f'c = 3000 PSI IN PEDESTALS, FOOTINGS AND CAISSONS. PROVIDE GRADE 60 REINFORCING STEEL BARS THAT MEET THE REQUIREMENTS OF ASTM A615 FOR CONCRETE REINFORCEMENT. DO NOT WELD REINFORCING STEEL BARS. RAKE-FINISH ALL HORIZONTAL CONSTRUCTION JOINTS, EXCEPT AS INDICATED. CHAMFER EXPOSED CONCRETE EDGES 1 INCH BY 1 INCH. ALL DIMENSIONS SHOWN ARE HORIZONTAL, EXCEPT AS NOTED. DIMENSIONS ARE BASED ON A NORMAL TEMPERATURE OF 68 DEGREES F. SPREAD FOOTINGS OR CAISSONS MAY BE ORDERED BY THE ENGINEER TO BE AT ANY ELEVATION OR OF ANY DIMENSIONS NECESSARY TO PROVIDE A PROPER FOUNDATION. GALVANIZE ALL STRUCTURAL STEEL BOLTS, NUTS & WASHERS IN ACCORDANCE WITH PENNDOT PUB 408 UNLESS STAINLESS STEEL OR OTHERWISE INDICATED. ALL BOLT HOLES SHALL BE DRILLED. PROVIDE BOLT HOLES ˆ" LARGER THAN BOLT DIAMETER. STEEL MEMBER COMPONENTS REQUIRING CHARPY V-NOTCH TESTING ARE DESIGNATED ON THE PLANS BY (CVN), PROVIDE STEEL CONFORMING TO THE CVN REQUIREMENTS FOR ZONE 2, NON FRACTURE CRITICAL AS GIVEN IN THE AASHTO MATERIAL SPECIFICATIONS. PIPE DIAMETERS SHOWN UP TO AND INCLUDING 12 INCHES ARE NOMINAL DIAMETERS. PIPE DIAMETERS SHOWN FROM 14 INCHES AND UP ARE ACTUAL DIAMETERS. PROVIDE A CERTIFICATION LETTER, SIGNED AND SEALED BY A PROFESSIONAL ENGINEER REGISTERED IN THE COMMONWEALTH OF PENNSYLVANIA, CERTIFYING THAT THE INTERNAL STRUCTURE OF THE DMS AND THE CONNECTION TO THE SIGN STRUCTURE MEET THE REQUIREMENT OF THE AASHTO "STANDARD SPECIFICATIONS FOR STRUCTURAL SUPPORTS FOR HIGHWAY SIGNS, LUMINAIRES AND TRAFFIC SIGNALS AS AMENDED BY PENNDOT." THE CERTIFICATION LETTER SHALL BE PREPARED BY THE DMS MANUFACTURER'S PROFESSIONAL ENGINEER AND SUBMITTED BY THE CONTRACTOR. ONE TEST BORING SHALL BE PROVIDED AT EACH DMS FOUNDATION LOCATION. 16. 15. 14. 13. 12. 11. 10. 9. 8. 7. 6. 5. 4. 3. 2. 1. ALL FILLET WELDS SHOWN ARE MINIMUM SIZE UNLESS NOTED OTHERWISE. EDITION; PENNDOT DESIGN MANUAL - PART 4, MAY 2012 EDITION. (UNLESS NOTED OTHERWISE); AASHTO STANDARD SPECIFICATIONS FOR HIGHWAY BRIDGES, 17TH LUMINAIRES AND TRAFFIC SIGNALS, 4TH EDITION, 2001, INCLUDING INTERIMS THROUGH 2006 AASHTO STANDARD SPECIFICATIONS FOR STRUCTURAL SUPPORTS FOR HIGHWAY SIGNS, DESIGN SPECIFICATIONS: AND TRAFFIC SIGNALS (2005). MAINTAINENACE, AND REPAIR OF STRUCTURAL SUPPORTS FOR HIGHWAY SIGNS, LUMINARIES, U-BOLT INSTALLATION: PER FHWA PUB GUIDELINES FOR THE INSTALLATION, INSPECTION, AND PLATES, ANCHOR BOLTS, BOLTS: PER PENNDOT PUB 408 SECTION 1230.2(k). PIPE BRACING, ANGLES, SHAPES, PIPE COLUMNS & PIPE CHORDS, PROVIDE STRUCTURAL STEEL CONFORMING TO THE FOLLOWING: AASHTO/AWS D1.1/D1.1M:2008 FOR WELDING NOT COVERED IN AASHTO/AWS D1.5M/D1.5:2002 FOR STRUCTURAL SUPPORTS FOR HIGHWAY SIGNS, LUMINAIRES AND TRAFFIC SIGNALS". USE WELDING CODE AND CONTRACT SPECIAL PROVISIONS, AND AASHTO "STANDARD SPECIFICATIONS OF THE PENNDOT PUB 408, (LET DATE EDITION), AASHTO/AWS D1.5M/D1.5:2002-BRIDGE PROVIDE MATERIALS AND WORKMANSHIP IN ACCORDANCE WITH THE CURRENT VERSIONS MATERIALS AND WORKMANSHIP: ALLOWABLE ANCHOR BOLT STRESSES AASHTO 2001 SIGN SPECS. 5.17 BOLT DESIGN CRITERIA AASHTO 2001 SIGN SPECS. 5.16 COMBINED BOLT SHEAR AND TENSION 10.32.3.3.3 BOLT PRYING ACTION 10.32.3.3.2 SLIP-CRITICAL BOLT ALLOWABLE 10.32.3.2.1 ALLOWABLE BOLT STRESSES TABLE 10.32.3B BOLT CRITERIA AASHTO HIGHWAY BRIDGES (U.N.O.) COLUMN DESIGN (PEDESTALS) 8.15.4 TORSION ACI SECTION A.7.3* FOOTING STABILITY REQUIREMENTS DM4 D5.5.5 DISTRIBUTION OF REINFORCEMENT 4.4.11.2.2 PRESSURES FOR ECCENTRICALLY LOADED FOOTINGS FIG. 4.4.7.1.1.1C MINIMUM CONCRETE COVER DM4 D8.22.1* SPACING LIMITS FOR REINFORCEMENT 8.21 MINIMUM REINF. OF FLEXURAL MEMBERS 8.17.1 SLENDERNESS OF COLUMNS 8.16.5.2 ALLOWABLE SHEAR STRESS 8.15.5.6.4 SHEAR STRESS IN FOOTINGS 8.15.5.6.2 SHEAR CAPACITY OF FOOTINGS 8.15.5.6.1 REINFORCEMENT TENSILE STRESS 8.15.2.2 ALLOWABLE BEARING STRESS 8.15.2.1.3 CONCRETE CRITERIA AASHTO HIGHWAY BRIDGES (U.N.O.) GROUP LOADS AASHTO 2001 SIGN SPECS. 3.4 F d DESIGN CRITERIA FOR PENNDOT DMS STRUCTURES (STRENGTH DESIGN AND FATIGUE DESIGN) WIND DRAG COEFFICIENT C = 1.7 FOR DMS DMS SIZE AND DEAD LOAD PER SUPPLIER WIND AND 30% GUST FACTOR EQ. C-1, WITH 80 MPH WIND LOAD APPENDIX C, SECTION C.3, ICE LOAD 3.7 LIVE LOAD (CATWALKS) 3.6 DEAD LOAD 3.5 LOADING AASHTO 2001 SIGN SPECS.(U.N.O.) LEGEND * DMS: DYNAMIC MESSAGE SIGN CVN: CHARPY V-NOTCH. FOR STRUCTURAL CONCRETE WITH COMMENTARY (ACI 318M-99). ACI: AMERICAN CONCRETE INSTITUTE - METRIC BUILDING CODE REQUIREMENTS U.N.O.: UNLESS NOTED OTHERWISE PART 4, STRUCTURES, MAY 2012 EDITION DM4: PENNSYLVANIA DEPARTMENT OF TRANSPORTATION, DESIGN MANUAL SPECIFICATIONS FOR HIGHWAY BRIDGES, 17TH EDITION TRANSPORTATION OFFICIALS, STANDARD AASHTO HIGHWAY BRIDGES: AMERICAN ASSOCIATION OF STATE HIGHWAY AND INCLUDING INTERIMS THRU 2006 LUMINAIRES AND TRAFFIC SIGNALS, 4TH EDITION, FOR STRUCTURAL SUPPORTS FOR HIGHWAY SIGNS, TRANSPORTATION OFFICIALS, STANDARD SPECIFICATIONS AASHTO 2001 SIGN SPEC: AMERICAN ASSOCIATION OF STATE HIGHWAY AND UNIT WEIGHT OF SOIL 100 POUNDS PER CUBIC FOOT MINIMUM AREA IN BEARING 95% TABLES IN THIS STANDARD) FOOTINGS FOLLOWING THE DESIGN MAXIMUM DESIGN PRESSURE 1.5 TONS PER SQUARE FOOT (FOR SPREAD FOOTINGS: DM4 SEC.10.6 COHESION 0 KIPS PER SQUARE FOOT UNIT WEIGHT OF SOIL 100 POUNDS PER CUBIC FOOT MODULUS OF SUBGRADE REACTION 10.0 POUNDS PER CUBIC INCH MAXIMUM DESIGN LATERAL DISPLACEMENT 0.5" MAXIMUM DESIGN PRESSURE 1.5 TONS PER SQUARE FOOT DRILLED SHAFTS (CAISSONS): DM4 SEC.D10.8.3.8, PENNDOT COM624P COMPUTER PROGRAM OR L-PILE STEEL CRITERIA AASHTO 2001 SIGN SPECS. (U.N.O.) STRENGTH CRITERIA SECTION PROPERTIES FOR TUBULAR SHAPES APPENDIX B, TABLE B-1 MAXIMUM STRESSES IN TUBULAR SHAPES APPENDIX B, TABLE B-2 ALLOWABLE STRESSES FOR TUBULAR SHAPES 5.6 (TABLE 5-3) & 5.11 ALLOWABLE STRESSES FOR DMS SUPPORTS 5.12 ALLOWABLE STRESSES FOR BASE PLATES 5.8 ALLOWABLE STRESSES FOR COMBINED STEEL STRESS 5.12 ALLOWABLE STRESSES FOR STRUCTURAL STEEL SECTION 5 FATIGUE CRITERIA FATIGUE REQUIREMENTS (FATIGUE CATEGORY I) SECTION 11 FATIGUE IMPORTANCE FACTOR ( I = 1) 11.6 GALLOPING 11.7.1 NATURAL WIND GUST 11.7.3 TRUCK-INDUCED GUST 11.7.4 SERVICEABILITY CRITERIA ALLOWABLE DEFLECTION 10.4
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COMMONWEALTH OF PENNSYLVANIADEPARTMENT OF TRANSPORTATION
CHIEF BRIDGE ENGINEER
RECOMMENDEDRECOMMENDED
BUREAU OF PROJECT DELIVERY
ACTING DIR, BUR. OF PROJECT DELIVERY
STANDARD
CENTER-MOUNT SIGN STRUCTURES
GENERAL NOTES
DESIGN CRITERIA AND
BD-649M
SHEET 1 OF 6NOV. 26, 2013 NOV. 26, 2013
DYNAMIC MESSAGE SIGNS
REFERENCE DRAWINGS
CLASSIFICATION OF EARTHWORK FOR STRUCTURES
TYPE 2 STRONG POST GUIDE RAIL
TYPE 2 WEAK POST GUIDE RAIL
BARRIER PLACEMENT AT OBSTRUCTIONS
TYPE 2 WEAK POST MEDIAN BARRIER
BC-736M
BC-741M
RC-11M
RC-52M
RC-53M
RC-54M
RC-55M
REINFORCEMENT BAR FABRICATION DETAILS
RC-58M SINGLE FACE CONCRETE BARRIER PLACEMENT AT MEDIAN PIERS
STRUCTURES STRUT LENGTHS UP TO 40'
OVERHEAD SIGN STRUCTURES - CANTILEVER AND CENTER-MOUNT
ITS DEVICES - GENERALITS-1201
ITS-1230 GENERAL NOTES FOR CANTILEVER STRUCTURES
GENERAL NOTES:
INFORMATIONAL NOTES:
CONSTRUCTION GENERAL NOTES:
FOR DETAILS NOT SHOWN SEE BC-741M.
WARRANTS FOR INSTALLATION.
USE OF GUIDE RAIL AND/OR CONCRETE BARRIER SHALL MEET APPLICABLE PENNDOT
CHAPTER 12 GUIDE RAIL, MEDIAN BARRIER AND ROADSIDE SAFETY DEVICES.
PROVIDE CRASHWORTHY BARRIER IN ACCORDANCE WITH PENNDOT PUB 13M (DM-2).
CRASHWORTHY BARRIER, SEE TABLE A, BC-741M SHEET 2.
ALL DMS SUPPORTS LOCATED WITHIN THE CLEAR ZONE MUST BE SHIELDED WITH A
CONTRACT DRAWINGS.
USE THESE STANDARDS AS A BASIS FOR THE PREPARATION OF STRUCTURE LAYOUTS AND
READ THESE NOTES BEFORE USING THESE STANDARDS.
ALL DIMENSIONS ARE IN U.S. CUSTOMARY UNITS.
PROVIDE 3-INCH CONCRETE COVER ON REINFORCEMENT BARS, EXCEPT AS NOTED.
USE CLASS A CEMENT CONCRETE f'c = 3000 PSI IN PEDESTALS, FOOTINGS AND CAISSONS.
PROVIDE GRADE 60 REINFORCING STEEL BARS THAT MEET THE REQUIREMENTS OF ASTM A615
FOR CONCRETE REINFORCEMENT. DO NOT WELD REINFORCING STEEL BARS.
RAKE-FINISH ALL HORIZONTAL CONSTRUCTION JOINTS, EXCEPT AS INDICATED.
CHAMFER EXPOSED CONCRETE EDGES 1 INCH BY 1 INCH.
ALL DIMENSIONS SHOWN ARE HORIZONTAL, EXCEPT AS NOTED.
DIMENSIONS ARE BASED ON A NORMAL TEMPERATURE OF 68 DEGREES F.
SPREAD FOOTINGS OR CAISSONS MAY BE ORDERED BY THE ENGINEER TO BE AT ANY ELEVATION
OR OF ANY DIMENSIONS NECESSARY TO PROVIDE A PROPER FOUNDATION.
GALVANIZE ALL STRUCTURAL STEEL BOLTS, NUTS & WASHERS IN ACCORDANCE WITH PENNDOT
PUB 408 UNLESS STAINLESS STEEL OR OTHERWISE INDICATED.
ALL BOLT HOLES SHALL BE DRILLED.
PROVIDE BOLT HOLES ˆ" LARGER THAN BOLT DIAMETER.
STEEL MEMBER COMPONENTS REQUIRING CHARPY V-NOTCH TESTING ARE DESIGNATED ON THE
PLANS BY (CVN), PROVIDE STEEL CONFORMING TO THE CVN REQUIREMENTS FOR ZONE 2, NON
FRACTURE CRITICAL AS GIVEN IN THE AASHTO MATERIAL SPECIFICATIONS.
PIPE DIAMETERS SHOWN UP TO AND INCLUDING 12 INCHES ARE NOMINAL DIAMETERS.
PIPE DIAMETERS SHOWN FROM 14 INCHES AND UP ARE ACTUAL DIAMETERS.
PROVIDE A CERTIFICATION LETTER, SIGNED AND SEALED BY A PROFESSIONAL ENGINEER
REGISTERED IN THE COMMONWEALTH OF PENNSYLVANIA, CERTIFYING THAT THE INTERNAL
STRUCTURE OF THE DMS AND THE CONNECTION TO THE SIGN STRUCTURE MEET THE REQUIREMENT
OF THE AASHTO "STANDARD SPECIFICATIONS FOR STRUCTURAL SUPPORTS FOR HIGHWAY SIGNS,
LUMINAIRES AND TRAFFIC SIGNALS AS AMENDED BY PENNDOT." THE CERTIFICATION LETTER
SHALL BE PREPARED BY THE DMS MANUFACTURER'S PROFESSIONAL ENGINEER AND SUBMITTED BY
THE CONTRACTOR.
ONE TEST BORING SHALL BE PROVIDED AT EACH DMS FOUNDATION LOCATION.16.
15.
14.
13.
12.
11.
10.
9.
8.
7.
6.
5.
4.
3.
2.
1.
ALL FILLET WELDS SHOWN ARE MINIMUM SIZE UNLESS NOTED OTHERWISE.
EDITION; PENNDOT DESIGN MANUAL - PART 4, MAY 2012 EDITION.
(UNLESS NOTED OTHERWISE); AASHTO STANDARD SPECIFICATIONS FOR HIGHWAY BRIDGES, 17TH
LUMINAIRES AND TRAFFIC SIGNALS, 4TH EDITION, 2001, INCLUDING INTERIMS THROUGH 2006
AASHTO STANDARD SPECIFICATIONS FOR STRUCTURAL SUPPORTS FOR HIGHWAY SIGNS,
DESIGN SPECIFICATIONS:
AND TRAFFIC SIGNALS (2005).
MAINTAINENACE, AND REPAIR OF STRUCTURAL SUPPORTS FOR HIGHWAY SIGNS, LUMINARIES,
U-BOLT INSTALLATION: PER FHWA PUB GUIDELINES FOR THE INSTALLATION, INSPECTION,
AND PLATES, ANCHOR BOLTS, BOLTS: PER PENNDOT PUB 408 SECTION 1230.2(k).
PIPE BRACING, ANGLES, SHAPES,
PIPE COLUMNS & PIPE CHORDS,
PROVIDE STRUCTURAL STEEL CONFORMING TO THE FOLLOWING:
AASHTO/AWS D1.1/D1.1M:2008 FOR WELDING NOT COVERED IN AASHTO/AWS D1.5M/D1.5:2002
FOR STRUCTURAL SUPPORTS FOR HIGHWAY SIGNS, LUMINAIRES AND TRAFFIC SIGNALS". USE
WELDING CODE AND CONTRACT SPECIAL PROVISIONS, AND AASHTO "STANDARD SPECIFICATIONS
OF THE PENNDOT PUB 408, (LET DATE EDITION), AASHTO/AWS D1.5M/D1.5:2002-BRIDGE
PROVIDE MATERIALS AND WORKMANSHIP IN ACCORDANCE WITH THE CURRENT VERSIONS